CN218105341U

CN218105341U - Multifunctional office chair chassis adjusting device

Info

Publication number: CN218105341U
Application number: CN202222121347.4U
Authority: CN
Inventors: 刘博斌
Original assignee: Anjica Ruibai Furniture Technology Co ltd
Current assignee: Anjica Ruibai Furniture Technology Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-12-23
Anticipated expiration: 2032-08-12

Abstract

The utility model discloses a multifunctional office chair chassis adjusting device, which relates to the technical field of office chair chassis adjustment and comprises a bottom plate and an adjusting unit; the upper surface of the bottom plate is provided with a buffer unit, a placing plate is arranged on the buffer unit, and the lower surface of the placing plate is provided with a lengthening unit; the adjusting unit includes install bin, first pivot, ratchet, second pivot, hand wheel, pawl and first spring, the install bin just all sets up in the side both sides of placing the board totally two, first pivot rotates respectively and connects two install bins, and first pivot is provided with the ratchet on the part that is located two install bins, the install bin is connected in the ratchet rotation, the install bin is connected in the pivot rotation, and the tip of pivot is provided with the hand wheel. The utility model discloses can carry out the quick adjustment to office chair's back inclination, and can provide the support when the staff has a rest, improve office chair's use travelling comfort.

Description

Multifunctional office chair chassis adjusting device

Technical Field

The utility model relates to an office chair chassis adjusts technical field, specifically is a multi-functional office chair chassis adjusting device.

Background

The office chair is a chair used by a worker sitting when the worker works, can prevent the worker from standing when working, can increase the working time of the worker, and is a necessary tool for an office;

the patent with publication number CN215583599U in the prior art discloses a device for adjusting the stability of an office chair chassis, which comprises a chassis, wherein two installation boxes are fixedly installed on one side of the chassis, one side, close to each other, of the two installation boxes is rotatably installed with a same rotating shaft, a backrest is fixedly sleeved on the outer side of the rotating shaft, a gear is fixedly sleeved on the outer side of the rotating shaft, and a torsion spring is fixedly installed on the inner wall of the rear side of the installation box on the rear side;

its when using, can't be quick adjust the back inclination of office chair, and staff noon and midday break all is on office chair in the present office, and office chair can't provide sufficient support for the staff and let the staff have a rest, for this reason, we provide a multi-functional office chair chassis adjusting device.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a multi-functional office chair chassis adjusting device, can carry out the quick adjustment to office chair's back inclination, and can provide the support when the staff has a rest, improve office chair's use travelling comfort, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multifunctional office chair chassis adjusting device comprises a bottom plate and an adjusting unit;

a bottom plate: the upper surface of the frame is provided with a buffer unit, a placing plate is arranged on the buffer unit, and the lower surface of the placing plate is provided with a lengthening unit;

an adjusting unit: include install bin, first pivot, ratchet, second pivot, hand wheel, pawl and first spring, the install bin just all sets up in the side both sides of placing the board totally two, first pivot rotates respectively and connects two install bins, and first pivot is located the part of two install bins and is provided with the ratchet, the install bin is connected in the ratchet rotation, the pivot is rotated and is connected the install bin, and the tip of pivot is provided with the hand wheel, and the pivot is located the part of install bin and is provided with the pawl, pawl slip joint is on the ratchet, first spring setting is in the install bin, and fixed connection install bin and pawl are distinguished at the both ends of first spring.

The first rotating shaft is connected with a backrest of the office chair, the pawl clamps the ratchet wheel, the ratchet wheel can only rotate in a single direction, when the angle of the backrest needs to be adjusted, the first rotating shaft is rotated clockwise through the backrest, the first rotating shaft drives the ratchet wheel to rotate, the ratchet wheel pushes the pawl to tilt, the first spring is stretched, the backrest is adjusted to a proper angle, due to the elastic effect of the first spring, the pawl is clamped on the ratchet wheel, when the angle of the backrest needs to be adjusted to be large, the hand wheel is rotated, the hand wheel drives the second rotating shaft to rotate, the second rotating shaft drives the pawl to move, the pawl is separated from the ratchet wheel, the first spring is stretched, the first rotating shaft is rotated anticlockwise through the backrest, the backrest is adjusted to a proper angle, the hand wheel is loosened, under the elastic effect of the first spring, the pawl is clamped on the ratchet wheel, the backrest is locked, when the seat back chair is used, the placing plate is buffered through the buffering unit, the comfort of the office chair is improved, when the seat chair is rested, the length of an employee is increased through the lengthening unit.

Further, extension unit includes fixed plate, screw rod, slide bar, kicking block, connecting axle, extension board and power component, the fixed plate sets up the lower surface of placing the board, and threaded connection has the screw rod on the fixed plate, the one end of screw rod is connected with power component, and the other end of screw rod rotates and connects the kicking block, the slide bar is connected to the kicking block, slide bar sliding connection fixed plate, kicking block sliding connection extension board, the extension board sets up on the connecting axle, the connecting axle rotates to be connected on placing the board, when the staff need have a rest on the office chair, drives the screw rod through power component and rotates, and the screw rod drives the kicking block and removes, carries on spacingly through the slide rod to the kicking block, and the kicking block promotes the extension board and rotates to adjust the extension board to suitable position, supports staff's shank through the extension board, has improved the travelling comfort of staff when using the office chair to have a rest.

Furthermore, power component includes carousel and handle, the carousel sets up on the screw rod, and the eccentric position of carousel is provided with the handle, drives the carousel through the handle and rotates, and the carousel drives the screw rod and rotates.

Further, the buffer unit includes telescopic link and second spring, the telescopic link sets up on the bottom plate, and the board is placed in the telescopic link connection, has cup jointed the second spring on the telescopic link, cushions the board of placing through telescopic link and second spring to improve the travelling comfort when office chair uses.

Further, still include mount pad and bolt, the mount pad is totally two and all sets up in first pivot, is provided with the bolt on the mount pad, installs the back of office chair on the mount pad to fix through the bolt, be convenient for maintain the back and change.

Furthermore, still include pillar and universal wheel, the angle setting such as pillar is provided with the universal wheel at the lower surface of bottom plate, and the lower extreme of pillar passes through the pillar to be connected on the bottom plate, drives the bottom plate through the universal wheel and removes.

Compared with the prior art, the beneficial effects of the utility model are that: has the following advantages:

1. the hand wheel drives the pawl to move through the second rotating shaft, so that the pawl is separated from the ratchet wheel, the angle of the backrest can be adjusted, and after adjustment, the pawl tightly clamps the ratchet wheel under the action of the elastic force of the first spring, so that the ratchet wheel is locked, the angle of the backrest of the office chair is adjusted randomly, and the convenience of adjusting the backrest of the office chair is effectively improved;

2. the top block is driven to move by the rotary disc, the handle, the screw rod and the slide rod, the top block drives the lengthened plate to move, so that the angle of the lengthened plate is adjusted, the length of the office chair is lengthened, the legs of the staff are supported by the lengthened plate when the chair is used, and the comfort of the staff is improved when the staff have a rest by using the office chair;

3. remove when being convenient for office chair to use through pillar and universal wheel, cushion placing the board through telescopic link and second spring to the travelling comfort when staff uses office chair has effectively been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the local enlarged cross-sectional structure of the present invention.

In the figure: the device comprises a base plate 1, an adjusting unit 2, a mounting box 21, a first rotating shaft 22, a ratchet wheel 23, a second rotating shaft 24, a hand wheel 25, a pawl 26, a first spring 27, a lengthening unit 3, a fixing plate 31, a screw rod 32, a rotary table 33, a handle 34, a sliding rod 35, a top block 36, a connecting shaft 37, a lengthening plate 38, a buffer unit 4, a telescopic rod 41, a second spring 42, a placing plate 5, a mounting seat 6, a bolt 7, a strut 8 and a universal wheel 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-2, the present embodiment provides a technical solution: a chassis adjusting device of a multifunctional office chair comprises a bottom plate 1 and an adjusting unit 2;

bottom plate 1: the upper surface is provided with a buffer unit 4, a placing plate 5 is arranged on the buffer unit 4, and the lower surface of the placing plate 5 is provided with a lengthening unit 3;

the adjusting unit 2: include install bin 21, first pivot 22, the ratchet 23, second pivot 24, hand wheel 25, pawl 26 and first spring 27, install bin 21 is totally two and all sets up in the side both sides of placing board 5, first pivot 22 rotates respectively and connects two install bins 21, first pivot 22 is located the part of two install bins 21 and is provided with ratchet 23, ratchet 23 rotates and connects install bin 21, pivot 24 rotates and connects install bin 21, the tip of pivot 24 is provided with hand wheel 25, pivot 24 is located the part of install bin 21 and is provided with pawl 26, pawl 26 slip joint is on ratchet 23, first spring 27 sets up in install bin 21, the both ends of first spring 27 are fixed connection install bin 21 and pawl 26 respectively.

The first rotating shaft 22 is connected with a backrest of an office chair, the ratchet wheel 23 is clamped by the pawl 26, the ratchet wheel 23 can only rotate in a single direction, when the angle of the backrest needs to be adjusted, the first rotating shaft 22 is rotated clockwise through the backrest, the first rotating shaft 22 drives the ratchet wheel 23 to rotate, the ratchet wheel 23 pushes the pawl 26 to tilt, the first spring 27 is stretched, the backrest is adjusted to a proper angle, due to the elastic force of the first spring 27, the pawl 26 is clamped on the ratchet wheel 23, when the angle of the backrest needs to be adjusted to be large, the hand wheel 25 is rotated, the hand wheel 25 drives the second rotating shaft 24 to rotate, the second rotating shaft 24 drives the pawl 26 to move, the pawl 26 is separated from the ratchet wheel 23 and stretches the first spring 27, the first rotating shaft 22 is rotated anticlockwise through the backrest to a proper angle, the hand wheel 25 is loosened, under the elastic force of the first spring 27, the pawl 26 is clamped on the ratchet wheel 23, the backrest is locked, when the backrest is used, the placing plate 5 is buffered through the buffering unit 4, the comfort of the office chair is improved, when the rest is improved, the length of an employee on the office chair 3, and the rest is increased.

Extension unit 3 includes fixed plate 31, screw rod 32, slide bar 35, kicking block 36, connecting axle 37, extension board 38 and power component, fixed plate 31 sets up the lower surface of placing board 5, threaded connection has screw rod 32 on the fixed plate 31, the one end of screw rod 32 is connected with power component, the other end of screw rod 32 rotates and connects kicking block 36, kicking block 36 connects slide bar 35, slide bar 35 sliding connection fixed plate 31, kicking block 36 sliding connection extension board 38, extension board 38 sets up on connecting axle 37, connecting axle 37 rotates and connects on placing board 5, when the staff needs to have a rest on the office chair, it rotates to drive screw rod 32 through power component, screw rod 32 drives kicking block 36 and removes, it is spacing to kicking block 36 through slide bar 35, kicking block 36 promotes extension board 38 and rotates, thereby adjust extension board 38 to the suitable position, support the shank of staff through extension board 38, the travelling comfort when the staff uses the office chair has been improved.

The power assembly comprises a rotating disc 33 and a handle 34, the rotating disc 33 is arranged on the screw rod 32, the handle 34 is arranged at the eccentric position of the rotating disc 33, the rotating disc 33 is driven to rotate by the handle 34, and the rotating disc 33 drives the screw rod 32 to rotate.

Buffer unit 4 includes telescopic link 41 and second spring 42, and telescopic link 41 sets up on bottom plate 1, and telescopic link 41 connects and places board 5, has cup jointed second spring 42 on the telescopic link 41, cushions board 5 through telescopic link 41 and second spring 42 to improve the travelling comfort when office chair uses.

Still include mount pad 6 and bolt 7, mount pad 6 is totally two and all sets up on first pivot 22, is provided with bolt 7 on the mount pad 6, installs the back of office chair on mount pad 6 to fix through bolt 7, be convenient for maintain the back and change.

Still include pillar 8 and universal wheel 9, the angle setting such as pillar 8 is at the lower surface of bottom plate 1, and the lower extreme of pillar 8 is provided with universal wheel 9, and universal wheel 9 passes through pillar 8 to be connected on bottom plate 1, drives bottom plate 1 through universal wheel 9 and removes.

The utility model provides a pair of multifunctional office chair chassis adjusting device's theory of operation as follows: the backrest of the office chair is arranged on the mounting seat 6 and is fixed through the bolt 7, when the angle of the backrest needs to be adjusted, the first rotating shaft 22 is rotated clockwise through the backrest, the first rotating shaft 22 drives the ratchet wheel 23 to rotate, the ratchet wheel 23 pushes the pawl 26 to tilt, the first spring 27 is stretched, the backrest is adjusted to a proper angle, the pawl 26 is clamped on the ratchet wheel 23 due to the elastic force of the first spring 27, when the angle of the backrest needs to be adjusted, the hand wheel 25 is rotated, the hand wheel 25 drives the second rotating shaft 24 to rotate, the second rotating shaft 24 drives the pawl 26 to move, the pawl 26 is separated from the ratchet wheel 23, the first spring 27 is stretched, the first rotating shaft 22 is rotated counterclockwise through the backrest, the backrest is adjusted to a proper angle, the hand wheel 25 is loosened, under the elastic action of first spring 27, make pawl 26 chucking on ratchet 23, thereby lock the back, in use, cushion placing plate 5 through telescopic link 41 and second spring 42, thereby improve the travelling comfort when the office chair uses, drive bottom plate 1 through universal wheel 9 and remove, the convenience that the office chair removed has been improved, when the staff need have a rest on the office chair, it rotates to drive carousel 33 through handle 34, carousel 33 drives screw rod 32 and rotates, screw rod 32 drives kicking block 36 and removes, it is spacing to kicking block 36 through slide bar 35, kicking block 36 promotes extension board 38 and rotates, thereby adjust extension board 38 to suitable position, support staff's shank through extension board 38, the travelling comfort when the staff uses the office chair to have a rest has been improved.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a multi-functional office chair chassis adjusting device which characterized in that: comprises a bottom plate (1) and an adjusting unit (2);

base plate (1): the upper surface of the frame is provided with a buffer unit (4), a placing plate (5) is arranged on the buffer unit (4), and the lower surface of the placing plate (5) is provided with a lengthening unit (3);

adjusting unit (2): include install bin (21), first pivot (22), ratchet (23), second pivot (24), hand wheel (25), pawl (26) and first spring (27), install bin (21) are totally two and all set up in the side both sides of placing board (5), first pivot (22) rotate respectively and connect two install bins (21), and first pivot (22) are located and are provided with ratchet (23) on the part of two install bins (21), ratchet (23) rotate and connect install bin (21), pivot (24) rotate and connect install bin (21), and the tip of pivot (24) is provided with hand wheel (25), and pivot (24) are located and are provided with pawl (26) on the part of install bin (21), pawl (26) slip joint is on ratchet (23), first spring (27) set up in install bin (21), and the both ends of first spring (27) are fixed connection install bin (21) and pawl (26) respectively.

2. The multifunctional office chair chassis adjusting device of claim 1, wherein: extension unit (3) include fixed plate (31), screw rod (32), slide bar (35), kicking block (36), connecting axle (37), extension board (38) and power component, fixed plate (31) set up the lower surface of placing board (5), and threaded connection has screw rod (32) on fixed plate (31), the one end of screw rod (32) is connected with power component, and the other end of screw rod (32) rotates and connects kicking block (36), sliding rod (35) is connected in kicking block (36), slide bar (35) sliding connection fixed plate (31), kicking block (36) sliding connection extension board (38), extension board (38) set up on connecting axle (37), connecting axle (37) rotate to be connected on placing board (5).

3. The multifunctional office chair chassis adjusting device of claim 2, wherein: the power assembly comprises a rotary disc (33) and a handle (34), the rotary disc (33) is arranged on the screw rod (32), and the handle (34) is arranged at the eccentric position of the rotary disc (33).

4. The multifunctional office chair chassis adjusting device of claim 1, wherein: buffer unit (4) include telescopic link (41) and second spring (42), telescopic link (41) set up on bottom plate (1), and board (5) are placed in telescopic link (41) connection, have cup jointed second spring (42) on telescopic link (41).

5. The multifunctional office chair chassis adjusting device of claim 1, wherein: still include mount pad (6) and bolt (7), mount pad (6) are totally two and all set up on first pivot (22), are provided with bolt (7) on mount pad (6).

6. The multifunctional office chair chassis adjusting device of claim 1, wherein: still include pillar (8) and universal wheel (9), angle settings such as pillar (8) are provided with universal wheel (9) at the lower surface of bottom plate (1), the lower extreme of pillar (8).